Subject
6 free books about ducks, free to read online. Chapter 1 of any book is free, no account needed.
Ducks and Geese
Lamon, Harry M.; Slocum, Rob R.
Ducks at a Distance: A Waterfowl Identification Guide
Bob Hines
Wild Ducks: How to Rear and Shoot Them
W. Coape Oates
Ducks and Geese: Standard Breeds and Management
George E. Howard
L'anatra: Allevamento per la produzione della carne
Carlo Alberto Gonin
Natural and Artificial Duck Culture
James Rankin
